Home / 56,911.08-78,541.74-31,764.36

Finding the Fourth Proportional to 56,911.08, 78,541.74 and 31,764.36

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Solution

The fourth proportional to 56,911.08, 78,541.74 and 31,764.36 is: 43,837.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,911.08 : 78,541.74 = 31,764.36 : x
  2. Step 2: Convert to fraction form
    56,911.08/78,541.74 = 31,764.36/x
  3. Step 3: Cross multiply
    56,911.08x = 78,541.74 × 31,764.36
  4. Step 4: Simplify right side
    56,911.08x = 2,494,828,104.39
  5. Step 5: Solve for x
    x = 2,494,828,104.39/56,911.08
  6. Step 6: Final answer
    x = 43,837.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.